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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="../../../resources/js-test-style.css"/>
<script src="../../../js/js-test-pre.js"></script>
<script src="../../../js/webgl-test-utils.js"></script>
</head>
<body>
<canvas id="c" width="16" height="16"></canvas>
<div id="description"></div>
<div id="console"></div>
<script>
"use strict";
description('Tests texImage2D with invalid internalformat/format/type combinations');
debug("This is a regression test for <a href='https://bugs.chromium.org/p/chromium/issues/detail?id=656889'>Chromium Issue 656889</a>");

var wtu = WebGLTestUtils;
var gl = wtu.create3DContext("c", null, 2);
var ext = null;
if (!gl) {
    testFailed("WebGL context does not exist");
} else {
    testPassed("WebGL context exists");
}

var doTexImage = function(test) {
    var tex = gl.createTexture();
    gl.bindTexture(gl.TEXTURE_2D, tex);
    gl.texImage2D(gl.TEXTURE_2D, 0, test.internalformat, 64, 64, 0, test.format, test.type, null);
    wtu.glErrorShouldBe(gl, test.errors, "TexImage2D taking " + wtu.glEnumToString(gl, test.internalformat) + "/" +
        wtu.glEnumToString(gl, test.format) + "/" + wtu.glEnumToString(gl, test.type));
    gl.deleteTexture(tex);
}

var tests = [
    { internalformat: gl.RGBA, format: gl.RGBA, type: gl.UNSIGNED_BYTE, errors: [gl.NO_ERROR] },
    { internalformat: gl.RGBA, format: gl.RGBA, type: gl.FLOAT, errors: [gl.INVALID_OPERATION] },
    { internalformat: gl.RGBA, format: gl.RGBA, type: gl.HALF_FLOAT, errors: [gl.INVALID_OPERATION] },
    { internalformat: gl.LUMINANCE, format: gl.LUMINANCE, type: gl.FLOAT, errors: [gl.INVALID_OPERATION] },
    { internalformat: gl.LUMINANCE_ALPHA, format: gl.LUMINANCE_ALPHA, type: gl.HALF_FLOAT, errors: [gl.INVALID_OPERATION] },
];

tests.forEach(doTexImage);

var successfullyParsed = true;
</script>
<script src="../../../js/js-test-post.js"></script>
</body>
</html>
